--- diacanvas2-0.14.4/diacanvas/Makefile.am.orig	2006-01-03 13:51:06.000000000 +0100
+++ diacanvas2-0.14.4/diacanvas/Makefile.am	2021-06-23 17:14:13.009629728 +0200
@@ -114,7 +114,7 @@
 libdiacanvas2include_HEADERS = $(all_headers) diatypebuiltins.h diamarshal.h dia-features.h
 libdiacanvas2_la_SOURCES = $(all_sources) 
 libdiacanvas2_la_LDFLAGS = $(no_undefined)
-libdiacanvas2_la_LIBADD = $(DIACANVAS2_LIBS) 
+libdiacanvas2_la_LIBADD = $(DIACANVAS2_LIBS) -lm
 
 # Do the unit tests!
 test: all